Home / 75,561.12-113,258.52-31,163.58

Finding the Fourth Proportional to 75,561.12, 113,258.52 and 31,163.58

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Solution

The fourth proportional to 75,561.12, 113,258.52 and 31,163.58 is: 46,711.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,561.12 : 113,258.52 = 31,163.58 : x
  2. Step 2: Convert to fraction form
    75,561.12/113,258.52 = 31,163.58/x
  3. Step 3: Cross multiply
    75,561.12x = 113,258.52 × 31,163.58
  4. Step 4: Simplify right side
    75,561.12x = 3,529,540,948.70
  5. Step 5: Solve for x
    x = 3,529,540,948.70/75,561.12
  6. Step 6: Final answer
    x = 46,711.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.